Experimental bound on the charge radius of the electron neutrino

Publisher Website
Google Scholar
Abstract
A limit on the electron-neutrino charge radius |r| is derived from a measurement of the weak-neutral-current vector coupling constant gV obtained in electron-neutrino electron elastic scattering. The 90%-confidence interval for gV is −0.177<gV<0.187, which for sin2θW=0.227 implies that the νe mean-square charge radius is in the range −2.74×10−32<〈r2〉<4.88×10−32 cm2, or simply |r|<2.2×10−16 cm. This is the first experimental bound on the νe charge radius, and is the same order of magnitude as bounds for νμ structure.

This publication has 14 references indexed in Scilit: